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SAN FRANCISCO, Nov. 12 (Xinhua) -- Apple has unveiled a worldwide replacement program for the first-generation iPod nano music player due to overheating battery issues, telling owners to stop using the product and get it replaced for free."Apple has determined that, in very rare cases, the battery in the iPod nano (1st generation) may overheat and pose a safety risk. Affected iPod nanos were sold between September 2005 and December 2006," said Apple in a notice posted late Friday on the support section of its official website.The company said the issue has been traced to a single battery supplier that produced batteries with a manufacturing defect. Since the product is five or six years old now, the likelihood of an incident increases.Owners of iPod nano can check the serial number on the back of the product to see if it is eligible for replacement. Apple promises a replacement unit about six weeks after the company received the affected one.The overheating battery issues of the first generation iPod nano have been known for years. In 2008, Japan's Ministry of Economy, Trade and Industry launched an investigation into Apple after dozens of iPod overheating cases were reported, including several incidents of iPod nanos toasting to the point of catching fire and causing minor burns to owners.Last August, a commuter train in Tokyo was delayed during rush hour when passengers complained of a strong burning smell from an overheating iPod nano that had burst apart.The portable music player also cost Apple a 22.5 million-U.S. dollar settlement in 2009 when a class action lawsuit in California alleged iPod nano is prone to scratches and its alleged defects were not disclosed by the company.

BEIJING, Dec. 28 (Xinhuanet) -- China started to run its own satellite positioning system, Beidou, on Tuesday as the country climbed the global tech ladder and challenged the monopoly of the West. Beidou, or Big Dipper, the domestic version of the US Global Positioning System (GPS), started providing navigation, positioning and timing data on a pilot basis to China and the neighboring area for free on Tuesday, Ran Chengqi, director of the China Satellite Navigation Office, said. The system, with 10 orbiting satellites, covers an area from Australia in the south to Russia in the north. Signals can reach the Xinjiang Uygur autonomous region in the west and the Pacific Ocean in the east, Ran said. With six more satellites to be launched next year, the system will cover a wider area and eventually the entire globe by 2020 with a constellation of 35 satellites, he said. The accuracy of the positioning service will also improve as more satellites orbit. During the trial run Beidou can offer positioning to within 25 meters but when the system is officially launched next year accuracy will be enhanced to within 10 meters, he said. With the system operational China is the third member of an elite group, along with the US and Russia, to develop a satellite navigation system. The US spent 20 years and more than billion on the GPS. Completed in 1994, the system has 24 navigation satellites and is widely used around the world. Beidou has its own unique features, Ran said. "It not only tells users where they are and what time it is but also allows users to tell others the information through short messages," Ran said, adding that this feature is being considered by other systems. Russia's Glonass system achieved a 24-satellite constellation in 1996 but succumbed to funding problems. The rebuilding of the Glonass system is almost finished and Russian media reported that the system resumed service earlier this month. The European Union and the European Space Agency are building the Galileo satellite navigation system. Japan and India also intend to build independent regional navigation systems. "Countries build their own systems because owning an independent satellite navigation system is important to economic development and national security," said Pang Zhihao, deputy editor-in-chief of the monthly publication Space International. There have long been concerns that the US might take its dominant GPS offline in certain international emergencies. Ran said that the Beidou system will be "helpful" to national defense. An "independent and controllable" satellite navigation system can guarantee national economic development as well as scientific and industrial strength, he said. China started to reduce its reliance on the GPS in 2000, when it sent an experimental pair of positioning satellites into orbit. But Ran stressed that Beidou is "built for the world", as the compatibility of various systems enhances reliability for users. "If you only use GPS there will be blind spots. But from demonstrations I saw recently, receivers that are compatible with Beidou will overcome these problems," he said. He encouraged enterprises at home and abroad to join the research and development of application terminals compatible with Beidou. The office put a test version of the system's Interface Control Document online on Tuesday, which is a technical document vital for the manufacturing and development of receivers and chips. The prospects for the country's satellite navigation industry look bright, experts said. Analysts estimated that around 2020 the industry's output will reach 0 billion globally, including 400 billion yuan ( billion) to 500 billion yuan from China. According to the 2011 Report on Application of Geosaptial Information in China released on Monday, the number of satellite navigation application terminals in China has grown from less than 100,000 in 2000 to more than 10 million in 2009. The number is expected to reach 340 million by 2015. An insider said a compatible receiver for car use costs 1,600 yuan to 3,000 yuan, higher than a GPS receiver. "Chips supporting both GPS and Beidou systems have been developed, and terminals have been produced. There are no technical hurdles for the industry," said Han Shaowei, CEO of Beijing-based Unicore Communications Inc, a major navigation chip and core component provider. Beidou application terminals have been put into use in vehicles, such as government cars in Guangdong province. Ran said that private terminal makers in Guangdong are testing their receivers on the road, and the products seem stable. "The price of the compatible terminals is expected to be slashed next year," he said.

BEIJING, Dec. 11 (Xinhua) -- China is faced with severe challenges in collecting enough blood plasma to produce medicines, Health Minister Chen Zhu said Sunday.Chen called on the public to join blood donation after donating blood plasma at the Beijing Red Cross Blood Center on Sunday, the fifth time since he took office in 2007.Blood plasma is needed to make blood products like prothrombin complex which is vital for hemophiliacs.The total volume of blood plasma collected last year was 4,180 tonnes, while the volume needed to produce enough medicines was 8,000 tonnes, said a statement from the ministry. The situation became even worse this year.Donations of blood plasma in China fell dramatically in recent years, as a result of safety concerns from donors and the government's efforts to regulate blood collection after contamination triggered HIV infection scandals.In an overhaul of plasma collection services in 2004, the ministry closed 262 donation centers, leaving only 138 in operation, resulting in the plasma donations falling at least one-third from 5,000 tonnes in 2003.Blood plasma are currently collected at 144 designed stations across the mainland. The stations, as requested by law, are all owned by major manufacturers of blood products.Chen promised to encourage qualified drug makers to set up more collection stations in the next five years.He also assured the public the safety of blood donation at authorized stations.

JERUSALEM, Jan. 12 (Xinhua) -- An Israeli company has developed a system that scans the brain and provides a three dimensional image of the nerve cell connectivity to treat brain diseases like Alzheimer's or HDHD.The firm ElMindA trademarked a non-invasive system, the BNA ( Brain Network Activation), that helps doctors visualize the connectivity between nerve cells and synchronization that can even measure the severity of the patients condition from one day to another, the Israel21c news site reported on ThursdayBy creating a three-dimensional image of the brain while asking the patients to repeat an activity several times, BNA developers hope this system will become a regular way of diagnosing brain illnesses."Our vision is that every psychiatrist and neurologist in the world will routinely send every patient for BNA tests," said Dr. Eli Zangvil, ElMindA's strategic advisor for business development. "Our test would add information and aid in diagnostics in a way no other existing technology can do," he added.BNA could help doctors find out exactly at what stage of the disease patients and prescribe the exact medication for them."To do that, we must collect a lot of data," Zangvil said. "To say this person has a certain disease or condition, I have to be able to compare their pattern to a normal brain pattern of a person of the same age and gender." he said.Researchers hope to gather the amount of data they need to obtain FDA approval in the U.S. by the end of 2012, and start marketing it to hospitals by 2013.

DOHA, Jan. 19 (Xinhua) -- Visiting Chinese Premier Wen Jiabao met here Wednesday with Qatari Emir Sheikh Hamad bin Khalifa al-Thani over bilateral ties.During the meeting, Wen said China-Qatar relations have seen rapid development although diplomatic ties between the two countries are young.Both countries have adhered to the principles of respecting each other and treating each other as equals, the premier noted.The Chinese and Qatari economies are highly complementary, and China is ready to work with Qatar to push bilateral political relations and pragmatic cooperation to higher levels from a strategic perspective, said Wen.Chinese Premier Wen Jiabao (L) meets with Sheikh Hamad bin Khalifa al Thani (R), the emir of Qatar, in Doha, capital of Qatar, Jan. 18, 2012.He said he has deeply felt the Arab people's friendship toward the Chinese people during his ongoing Gulf tour, which had taken him to Saudi Arabia and the United Arab Emirates before he arrived in Doha earlier Wednesday.The development of the China-Arab relations has a solid political foundation and enjoys extensive public support, Wen said, adding that both sides hope to intensify pragmatic cooperation so as to promote their socioeconomic development and bring tangible benefits to their peoples.The Chinese premier said he is confident in the future of the China-Arab relations.Noting that profound and complicated changes are taking place across West Asia and North Africa, Wen said China believes that countries in the region can solve their own problems by themselves.China supports the efforts made by Qatar and other Gulf nations in maintaining regional stability, he said, adding that the international community should play a constructive role in this regard and that China is ready to enhance communication and coordination with Qatar.The emir, for his part, said Wen's visit has yielded fruitful results and greatly improved bilateral relations.He said Qatar is committed to pushing forward friendly cooperation with China in various areas, carrying out Qatar-China cooperation projects and stepping up coordination and collaboration with China on regional and world affairs so as to lift the bilateral relations to higher levels.